1- vaccination an example on :
1-primary prevention
2-secondary prevention
3- tertiary prevention
4- ALL OF THE ABOVE

2- the list of sampling units called
1-population
2-sample
3-frame
4-ratio


3- the prevalence is the desirable rate for
1-measles
2-tB
4- a+c
3- influenza


4-healt education is a:
1-primary prevention
2-secondary prevention
3-tertiary prevention
4-a+b

5-((salmonella)) an example on :
1-airdorne disease
2-food and drink disease
3-arthopod –born disease
4-contact transmission disease

6- al d s an example on
1-airdorne disease
2-food and drink disease
3-arthopod –born disease
4-contact transmission disease

7- cholera an example on
1-airdorne disease
2-food and drink disease
3-arthopod –born disease
4-contact transmission disease

8\Common cold an example on

1-airdorne disease
2-food and drink disease
3-arthopod –born disease
4-contact transmission disease


9- ……………………relate to disease or disability
1-endemic
2- epidemic
3-mortality
4-morbidity

10- the term media refers to
1-equipment
Materials
3-a+b
4-none above

11-the incubation period for yellow fever is
1-5 days
2- 6 days
3- 3 days
4- 4 days